Bradford-White Corp U4TW60T*FRN, U4TW50T*FRN, U4TW40T*FRN service manual Specifications

Specifications

Power Supply	Dedicated 115VAC, 60 Hz, 15A.
Gas Supply Pipe	Minimum 1/2” NPT (schedule 40 black iron pipe recommended).
Approved Gas Type	Natural Gas.
Gas Pressure	6.0” W.C. minimum, 11.0” W.C. maximum.
Venting System	Power vent through the wall or vertical through the roof.
Approved Vent Materials	PVC, CPVC or ABS.
Minimum clearance for	18” from top, 24” from front, 4” sides and rear.
Servicing
Water Supply Pressure	150 PSI maximum allowable working pressure. Check local codes for
	supply pressure.
TCO Limit	Residential 118oF (87oC), Commercial 199oF (93oC).
Residential Temperature	60oF (16oC) to 160oF (71oC) (approximate temperatures).
Set Point Range
Commercial Tempera-	80oF (27oC) to 180oF (82oC) (approximate temperatures).
ture Set Point Range
Blower Temperature	Normally closed, opens @ 165oF (74oC), auto reset @130oF (54oC)
Switch
	UTW1 Models:
	Normally open, closes on vacuum increase @ -0.68, opens on vacuum
	decrease @ -0.65
	U4TW Models:
Pressure Switch	Normally open, closes on vacuum increase @ -0.83, opens on vacuum
	decrease @ -0.80
	U2TW & UTW4 Models:
	Normally open, closes on vacuum increase @ -1.28, opens on vacuum
	decrease @-1.25
	U1TW & U4TW Models:
Blower	115VAC, 60Hz, 3.1 amps, 3000 RPM, 42 CFM @ 1.5” W.C.
	U2TW & UTW4 Models:
	115VAC, 60Hz, 3.1 amps, 3000 RPM, 68 CFM @ 0.4” W.C.

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